EQUIPMENT FOR LOW-GRADE KRYPTON CONCENTRATE WINNING

摘要

The device for extraction of poor krypton concentrate by low-temperature air separation consists especially of the upper and lower rectification column, heat exchangers, chief condensers, additional condenser, connected to krypton columns on the liquid oxygen path, duct and valves, and it is characterized by the fact that, on the liquid oxygen path from the additional condenser, the krypton scrubbing column with a space above the highest compartment is arranged, and the highest compartment is interconnected via the duct of liquid oxygen with a regulation valve with the collector of liquid oxygen from the first or higher rectifying compartment in the upper column.